Look at Ethereum. They implemented smart contract using which new tokens could be issued. Now, BTC fork BCH has Simple Ledger Protocol, using which one can do the same. BTC HODLers got it for free.

Look at Grin. They implemented MimbleWimble protocol for privacy. Now, BTC airdrop MWC has implemented the same. BTC HODLers got it for free.

Look at BAT. They implemented in-browser ad through Brave browser and rewarded end user. Now, BTC airdrop CPD Token is going to do the same through CPD Browser. BTC HODLers got it for free.

If every new tech in crypto field goes to BTC HODLers for free, why would people invest in new tech?